— 62 - 



PlaKiogranima Nancoorense Grun. 

 Podosira cariegata A. S. 

 Polymyxus pulchellus Grun. 

 Porpeia quadrata Grec. 



— quadriceps Bail. 

 Pterotheca subulata Grun. 

 Pyxilla americana Grun. 



Riitllai'ia epsi/on p. longicornis Tp. etBr. 



— hexagonus Grev. 



— pulchra A. S. 



Stephanogonia actinoptycbus Eh. 



Stephanop3'xis corona Eh. 



— limbata Eh. 



— rudis Grev. 



— spinosissima. 



— turris Eh. 



Stictodiscus califoruicus Grun. 



Stictodiscus Hardmanianus Grun. 



— — f» minor. 

 Triceratium arcticum v. californica f* te- 



traj?ona. 



— californicum Grun. 



— consimile Grun. 



— elegans Grev. v. major. 



— — fa pusilla. 



— favus Eh. 



— heteroporum Grun. 



— inelegans Grev. 



— — c. yucatensis Grun. 



— Montereyi Bright. 



— obliquum Grun. 



— quadrangulare Grev. 



— recepium A. S. 



— strabo A. S. fragments. 



— validum Grun. 

 Zygoceros circinus Bailey. 



xNo 113 SAINT-NECTAIRE — PUY-DE-DOME (France) 

 \ (Source minérale) 



BIBLIOGRAPHIE. — Frère J. Héribaud. Les Diatomées d'Auver 

 gne 1893 



Achnantbes lanceolata Grun. 



— minutissima Ktz. 



Amphora acutiuscula Ktz. 



— affinis V. Ergadensis Greg. 



— ovalis Ktz. 



— pediculus Grun. 



— salina W. Sm. 



Cocconeis placentula Eh. 



Cymatupleura elliptica W. Sm. 



— solea Bréb. 



Cymbella parva W. Sm. 



Denticula elegans Ktz. 



— — V. thermalis Ktz. 



Eocyoïiema lunula Grun. 



— prostratum Ralfs. 



Epitheniia gibba v. parallela Grun. 



— gibberula Eh. 



— — V. producta Grun. 



— sorex Ktz. 



— zébra Grun. 



Fragilaria constrnens v. pumila Gra^^, 

 Gonipboneina micropus v. minor Grun. 



— monlanum Schum. 



— — V. pumila Grun. 



Melosira distans v. alpigena Grun. 



— Rœseana Moor. 



— tenuis Grun. 



IVavicala amphisbœna Bory. 



— appendiculata Ktz. 



— — V. irrorata Giun.^ 



— atomus Grun. 



